# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit linux-mod cvs

DESCRIPTION="Driver for the RaLink RT2x00 wireless chipsets"
HOMEPAGE="http://rt2x00.serialmonkey.com"
LICENSE="GPL-2"
SLOT="0"

ECVS_SERVER="rt2400.cvs.sourceforge.net:/cvsroot/rt2400"
ECVS_MODULE="source/rt2x00"
ECVS_LOCALNAME="${P}"

KEYWORDS="-* ~amd64 ~x86"
RDEPEND="net-wireless/wireless-tools"

IUSE_RT2X00_DEVICES="rt2400pci rt2500pci rt2500usb rt61pci rt73usb"
IUSE_RT2X00_EXTRA="rfkill"
IUSE="asm debug"

for x in ${IUSE_RT2X00_DEVICES} ${IUSE_RT2X00_EXTRA} ; do
	IUSE="${IUSE} ${x}"
done

full="y"
for m in ${IUSE_RT2X00_DEVICES} ; do
	if use "${m}" ; then
		full="n"
		break
	fi
done

pkg_setup() {
	CONFIG_CHECK="WIRELESS_EXT MAC80211 WLAN_80211"
	ERROR_WIRELESS_EXT="${P} requires support for Wireless LAN drivers (non-hamradio) & Wireless Extensions (WIRELESS_EXT)."

	if use rfkill ; then
		CONFIG_CHECK="${CONFIG_CHECK} RFKILL_INPUT"
	fi

	if use rt2400pci \
		|| use rt2500pci \
		|| use rt61pci ; then
		CONFIG_CHECK="${CONFIG_CHECK} PCI"
	fi

	if use rt2500usb || use rt73usb ; then
		CONFIG_CHECK="${CONFIG_CHECK} USB"
	fi

	if use rt61pci || use rt73usb ; then
		CONFIG_CHECK="${CONFIG_CHECK} HOTPLUG FW_LOADER CRC_ITU_T"
		ERROR_FW_LOADER="${P} requires support for Firmware module loading (CONFIG_FW_LOADER and CONFIG_HOTPLUG)."
	fi

	if use debug ; then
		CONFIG_CHECK="${CONFIG_CHECK} DEBUG_FS"
		ERROR_DEBUG_FS="${P} requires Kernel Debug FS support (CONFIG_DEBUG_FS)"
	fi

	kernel_is lt 2 6 22 && die "${P} requires at least kernel 2.6.22"
	linux-mod_pkg_setup
	BUILD_PARAMS="KERNDIR=${KV_DIR} KERNOUT=${KV_OUT_DIR}"
	BUILD_TARGETS=" " # Target "module" is not supported, so we blank it
}

src_compile() {
	local m= asm="n" button="n" debug="n" yn= M=

	use asm && asm="y"
	use debug && debug="y"
	use rfkill && button="y"

	if [[ ${full} == "y" ]] ; then
		ewarn "No module specified in USE flags - building everything."
	fi

	# Generate the config file now
	echo "# Config file generated by portage" > config

	# Enable the rt2x00lib module
	echo "CONFIG_RT2X00=y" >> config
	echo "CONFIG_RT2X00_ASM=${asm}" >> config
	MODULE_NAMES="${MODULE_NAMES} rt2x00lib(rt2x00:)"

	# Enable the new DEBUGFS module
	if use debug ; then
		echo "CONFIG_RT2X00_DEBUG=y" >> config
		echo "CONFIG_RT2X00_DEBUGFS=y" >> config
		MODULE_NAMES="${MODULE_NAMES} rt2x00debug(rt2x00:)"
	fi

	# rt2400pci, rt2500pci and rt61pci require eeprom_93cx6 and rt2x00pci
	if use rt2400pci || use rt2500pci || use rt61pci || [[ ${full} == "y" ]] ; then
		echo "CONFIG_EEPROM_93CX6=y" >> config
		echo "CONFIG_EEPROM_93CX6_ASM=${asm}" >> config
		MODULE_NAMES="${MODULE_NAMES} eeprom_93cx6(rt2x00:) rt2x00pci(rt2x00:)"
	fi

	# rt2500usb and rt73usb require rt2x00usb
	if use rt2500usb || use rt73usb || [[ ${full} == "y" ]] ; then
		MODULE_NAMES="${MODULE_NAMES} rt2x00usb(rt2x00:)"
	fi

	for m in ${IUSE_RT2X00_DEVICES} ; do
		local yn="n" M=$(echo "${m}" | tr '[:lower:]' '[:upper:]')

		if [[ ${full} == "y" ]] || use "${m}" ; then
			yn="y"
		fi
		echo "CONFIG_${M}=${yn}" >> config
		echo "CONFIG_${M}_BUTTON=${button}" >> config

		if [[ ${yn} == "y" ]] ; then
			MODULE_NAMES="${MODULE_NAMES} ${m}(rt2x00:)"
		fi
	done

	linux-mod_src_compile
}

src_install() {
	linux-mod_src_install
	dodoc COPYING README THANKS
}

pkg_postinst() {
	linux-mod_pkg_postinst

	ewarn
	ewarn "This is a CVS ebuild - please report any bugs to the rt2x00 forums"
	ewarn "http://rt2x00.serialmonkey.com/phpBB2/viewforum.php?f=5"
	ewarn
	ewarn "Any bugs reported to Gentoo will be marked INVALID"

	if use rt61pci || [[ ${full} == "y" ]] ; then
		ewarn
		ewarn "This driver requires third party firmware to be manually installed."
		ewarn "Download from http://www.ralinktech.com/ralink/Home/Support/Linux.html"
		ewarn "and install contents of Firmware RT2501(RT2561/RT2661) archive into"
		ewarn "/lib/firmware or /usr/local/lib/firmware before loading driver module."
	fi

	if use rt73usb || [[ ${full} == "y" ]] ; then
		ewarn
		ewarn "This driver requires third party firmware to be manually installed."
		ewarn "Download from http://www.ralinktech.com/ralink/Home/Support/Linux.html"
		ewarn "and install contents of Firmware RT2501USB(RT2571W/RT2671) archive into"
		ewarn "/lib/firmware or /usr/local/lib/firmware before loading driver module."
	fi

	ewarn
}